Holding an object with 2 hands in animation
I've solved my problem. Instead of using &quot;Child Of&quot; constraint, I've used IK and Copy Rotation constraints. Firstly, I've added an armature to my ball mesh. 1 bone for the general ball movement and the other 2 child bones for the hand/arm targets. Then I've added IK constraints to the forearms with child bones selected as targets. (Do not forget to change the chain length to 2-3. Since I was using the Rigify rig model, I've used 3 as chain length.) And finally, I've added Copy Rotation constraint to the hands and I attached the child bones to them.
For more information: https://youtu.be/Jv1InLG58GI